@import url('https://fonts.googleapis.com/css2?family=Bricolage+Grotesque:opsz,wght@12..96,400;12..96,500;12..96,600;12..96,700;12..96,800&family=Figtree:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* ============================================================
   TOKENS
   ============================================================ */
:root {
  --c-purple:       #6366F1;
  --c-purple-dk:    #4F46E5;
  --c-purple-lt:    #A992FF;
  --c-purple-bg:    #F4F1FF;
  --c-purple-bg2:   #EDE8FF;
  --c-blue:         #38B6FF;
  --c-blue-lt:      #C8EAFF;
  --c-dark:         #0F0E1A;
  --c-dark2:        #1C1A2E;
  --c-body:         #3D3A52;
  --c-muted:        #8A87A0;
  --c-border:       rgba(124,92,252,0.13);
  --c-border-dk:    rgba(124,92,252,0.25);
  --c-white:        #FFFFFF;
  --c-off:          #FAFAFE;
  --c-green:        #00C48C;
  --c-red:          #FF5E7E;

  --font-display:   'Bricolage Grotesque', sans-serif;
  --font-body:      'Figtree', sans-serif;

  --r-sm:   10px;
  --r-md:   16px;
  --r-lg:   24px;
  --r-xl:   32px;
  --r-full: 9999px;

  --shadow-sm:   0 1px 4px rgba(15,14,26,0.06), 0 4px 16px rgba(15,14,26,0.04);
  --shadow-md:   0 4px 16px rgba(15,14,26,0.08), 0 12px 40px rgba(15,14,26,0.06);
  --shadow-lg:   0 8px 32px rgba(124,92,252,0.14), 0 24px 64px rgba(15,14,26,0.08);
  --shadow-glow: 0 0 0 3px rgba(124,92,252,0.18);

  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================
   RESET + BASE
   ============================================================ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--c-body);
  background: var(--c-white);
  overflow-x: hidden;
  line-height: 1.6;
}

img { display: block; max-width: 100%; }
a { text-decoration: none; color: inherit; }
button, input, select, textarea { font-family: inherit; }
ul { list-style: none; }

::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--c-off); }
::-webkit-scrollbar-thumb { background: var(--c-purple); border-radius: var(--r-full); }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
.display-xl {
  font-family: var(--font-display);
  font-size: clamp(52px, 7vw, 96px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -2.5px;
  color: var(--c-dark);
}
.display-lg {
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  color: var(--c-dark);
}
.display-md {
  font-family: var(--font-display);
  font-size: clamp(26px, 3.5vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.8px;
  color: var(--c-dark);
}
.display-sm {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  line-height: 1.25;
  color: var(--c-dark);
}
.text-lg  { font-size: 18px; line-height: 1.65; color: var(--c-body); }
.text-md  { font-size: 16px; line-height: 1.6;  color: var(--c-body); }
.text-sm  { font-size: 14px; line-height: 1.55; color: var(--c-muted); }
.text-xs  { font-size: 12px; line-height: 1.5;  color: var(--c-muted); }

.grad-text {
  background: linear-gradient(135deg, var(--c-purple) 0%, var(--c-blue) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.white { color: var(--c-white) !important; }
.muted { color: var(--c-muted) !important; }
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 40px;
}
.container-sm {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 40px;
}
.grid-2  { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3  { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4  { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.flex     { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.ai-c     { align-items: center; }
.ai-s     { align-items: flex-start; }
.jc-c     { justify-content: center; }
.jc-sb    { justify-content: space-between; }
.gap-8    { gap: 8px; }
.gap-12   { gap: 12px; }
.gap-16   { gap: 16px; }
.gap-24   { gap: 24px; }
.gap-32   { gap: 32px; }
.gap-48   { gap: 48px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--r-full);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1;
}
.btn svg { flex-shrink: 0; }

.btn-primary {
  background: var(--c-purple);
  color: var(--c-white);
}
.btn-primary:hover {
  background: var(--c-purple-dk);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(124,92,252,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--c-purple);
  border: 1.5px solid var(--c-border-dk);
}
.btn-outline:hover {
  background: var(--c-purple-bg);
  border-color: var(--c-purple);
}

.btn-dark {
  background: var(--c-dark);
  color: var(--c-white);
}
.btn-dark:hover {
  background: var(--c-dark2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-white {
  background: var(--c-white);
  color: var(--c-purple);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: rgba(255,255,255,0.1);
  color: var(--c-white);
  border: 1px solid rgba(255,255,255,0.2);
}
.btn-ghost:hover { background: rgba(255,255,255,0.18); }

.btn-lg { padding: 17px 34px; font-size: 16px; }
.btn-sm { padding: 9px 18px; font-size: 13px; }

.btn-icon {
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--r-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ============================================================
   BADGES / TAGS
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.badge-purple {
  background: var(--c-purple-bg);
  color: var(--c-purple);
  border: 1px solid var(--c-border-dk);
}
.badge-green  { background: rgba(0,196,140,0.1); color: var(--c-green); }
.badge-blue   { background: rgba(56,182,255,0.1); color: var(--c-blue); }
.badge-score  {
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  color: var(--c-white);
  border: none;
  font-size: 11px;
}

.pill-live {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 14px;
  border-radius: var(--r-full);
  background: var(--c-purple-bg);
  border: 1px solid var(--c-border-dk);
  font-size: 13px;
  font-weight: 600;
  color: var(--c-purple);
}
.pill-live .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--c-green);
  animation: blink 2s ease-in-out infinite;
}
@keyframes blink { 0%,100% { opacity:1; } 50% { opacity:0.3; } }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  height: 68px;
  overflow: hidden;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  border-bottom-color: var(--c-border);
  box-shadow: 0 2px 20px rgba(15,14,26,0.06);
}
.navbar > .container {
  height: 100%;
}
.navbar-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-logo {
  display: flex;
  align-items: center;
  height: 100%;
  background: none;
  flex-shrink: 0;
  overflow: hidden;
}
.navbar-logo img {
  height: 40px;
  width: auto;
  max-width: 180px;
  display: block;
  background: transparent;
  flex-shrink: 0;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.navbar-links a {
  padding: 8px 14px;
  border-radius: var(--r-md);
  font-size: 14px;
  font-weight: 500;
  color: var(--c-body);
  transition: var(--transition);
}
.navbar-links a:hover { background: var(--c-purple-bg); color: var(--c-purple); }
.navbar-links a.active { color: var(--c-purple); font-weight: 600; }

.navbar-actions { display: flex; align-items: center; gap: 10px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  padding: 120px 0 80px;
  background: var(--c-dark);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
}

/* layered background */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 40%, rgba(124,92,252,0.18) 0%, transparent 65%),
    radial-gradient(ellipse 50% 50% at 20% 80%, rgba(56,182,255,0.10) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 80% 90%, rgba(124,92,252,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.hero-grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(124,92,252,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(124,92,252,0.07) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 30%, transparent 100%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 60px;
  align-items: center;
}

.hero-eyebrow { margin-bottom: 28px; }

.hero-heading { margin-bottom: 24px; }
.hero-heading .display-xl { color: var(--c-white); }
.hero-heading .display-xl .grad-text { -webkit-text-fill-color: transparent; }

.hero-sub {
  font-size: 19px;
  line-height: 1.65;
  color: rgba(255,255,255,0.55);
  max-width: 500px;
  margin-bottom: 40px;
}

.hero-ctas { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

.hero-trust {
  margin-top: 48px;
  display: flex;
  align-items: center;
  gap: 20px;
}
.hero-trust-scores {
  display: flex;
  align-items: center;
  gap: 6px;
}
.score-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid var(--c-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-white);
  margin-left: -8px;
  flex-shrink: 0;
}
.score-avatar:first-child { margin-left: 0; }
.av-1 { background: linear-gradient(135deg, var(--c-purple), var(--c-blue)); }
.av-2 { background: linear-gradient(135deg, #F093FB, var(--c-purple)); }
.av-3 { background: linear-gradient(135deg, var(--c-blue), #00CEC9); }
.av-4 { background: linear-gradient(135deg, #F7971E, #FFD200); }
.av-5 { background: linear-gradient(135deg, var(--c-green), var(--c-blue)); }
.hero-trust-text { font-size: 13px; color: rgba(255,255,255,0.45); }
.hero-trust-text strong { color: rgba(255,255,255,0.8); font-weight: 600; }

/* HERO APP CARD */
.hero-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: var(--r-xl);
  overflow: hidden;
  backdrop-filter: blur(12px);
}

.hero-card-header {
  padding: 18px 22px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hero-card-dots { display: flex; gap: 6px; }
.hero-card-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}
.dot-red { background: #FF5F57; }
.dot-yellow { background: #FFBD2E; }
.dot-green { background: #28CA41; }
.hero-card-title { font-size: 13px; color: rgba(255,255,255,0.4); font-weight: 500; }

.hero-card-body { padding: 24px 22px; }

.score-showcase {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}
.score-showcase-num {
  font-family: var(--font-display);
  font-size: 80px;
  font-weight: 800;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.score-showcase-meta {}
.score-showcase-label { font-size: 11px; color: rgba(255,255,255,0.35); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 4px; }
.score-showcase-name { font-size: 15px; color: rgba(255,255,255,0.75); font-weight: 600; margin-bottom: 6px; }
.score-showcase-change {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(0,196,140,0.15);
  color: var(--c-green);
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: 12px;
  font-weight: 700;
}

.subject-bars { display: flex; flex-direction: column; gap: 12px; }
.subject-bar-row {
  display: grid;
  grid-template-columns: 64px 1fr 24px;
  gap: 10px;
  align-items: center;
}
.subject-bar-label { font-size: 12px; color: rgba(255,255,255,0.4); }
.subject-bar-track {
  height: 5px;
  background: rgba(255,255,255,0.06);
  border-radius: var(--r-full);
  overflow: hidden;
}
.subject-bar-fill {
  height: 100%;
  border-radius: var(--r-full);
  background: linear-gradient(90deg, var(--c-purple), var(--c-blue));
  transition: width 1.6s cubic-bezier(0.4,0,0.2,1);
}
.subject-bar-val { font-size: 12px; font-weight: 700; color: rgba(255,255,255,0.6); text-align: right; }

.hero-card-footer {
  padding: 16px 22px;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.hero-card-footer-text { font-size: 12px; color: rgba(255,255,255,0.3); }
.cycling-name { color: rgba(255,255,255,0.6); font-weight: 600; }

/* ============================================================
   TICKER
   ============================================================ */
.ticker-strip {
  background: linear-gradient(135deg, var(--c-purple) 0%, var(--c-blue) 100%);
  padding: 14px 0;
  overflow: hidden;
}
.ticker-track {
  display: flex;
  white-space: nowrap;
  animation: scroll-x 32s linear infinite;
}
.ticker-track:hover { animation-play-state: paused; }
.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 0 32px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  flex-shrink: 0;
}
.ticker-sep { color: rgba(255,255,255,0.35); }
@keyframes scroll-x {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   STATS ROW
   ============================================================ */
.stats-row {
  padding: 56px 0;
  border-bottom: 1px solid var(--c-border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-item {
  padding: 24px 32px;
  border-right: 1px solid var(--c-border);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--font-display);
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.stat-label { font-size: 14px; color: var(--c-muted); font-weight: 500; line-height: 1.4; }

/* ============================================================
   SECTION SHARED
   ============================================================ */
.section { padding: 96px 0; }
.section-sm { padding: 64px 0; }
.section-dark { background: var(--c-dark); }
.section-tinted { background: var(--c-off); }
.section-purple-tint { background: var(--c-purple-bg); }

.section-header { margin-bottom: 56px; }
.section-header-center { text-align: center; }
.section-header-center .section-sub { margin: 0 auto; }
.section-sub {
  font-size: 17px;
  line-height: 1.7;
  color: var(--c-muted);
  max-width: 580px;
  margin-top: 14px;
}
.section-sub-white { color: rgba(255,255,255,0.45); }

/* ============================================================
   FEATURE CARDS (HOW IT WORKS)
   ============================================================ */
.step-card {
  padding: 40px 36px;
  border-radius: var(--r-lg);
  background: var(--c-white);
  border: 1px solid var(--c-border);
  position: relative;
  transition: var(--transition);
  overflow: hidden;
}
.step-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-purple), var(--c-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }
.step-card:hover::after { transform: scaleX(1); }

.step-num {
  font-family: var(--font-display);
  font-size: 68px;
  font-weight: 800;
  letter-spacing: -3px;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 24px;
  opacity: 0.8;
}
.step-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--c-purple-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 22px;
}
.step-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 10px;
}
.step-desc { font-size: 15px; color: var(--c-muted); line-height: 1.65; }

/* ============================================================
   TESTIMONIALS (iMessage style)
   ============================================================ */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  align-items: start;
}
.testi-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--r-lg);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: var(--transition);
}
.testi-card:hover {
  transform: translateY(-4px);
  border-color: rgba(124,92,252,0.25);
  background: rgba(124,92,252,0.04);
}

.msg-bubble-recv {
  background: rgba(255,255,255,0.08);
  border-radius: 18px 18px 18px 4px;
  padding: 13px 16px;
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  line-height: 1.6;
  align-self: flex-start;
  max-width: 95%;
}
.msg-bubble-sent {
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  border-radius: 18px 18px 4px 18px;
  padding: 13px 16px;
  font-size: 14px;
  color: var(--c-white);
  line-height: 1.6;
  align-self: flex-end;
  max-width: 80%;
}
.testi-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 6px;
  margin-top: 2px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.testi-name {
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.3);
  text-transform: uppercase;
  letter-spacing: 1.2px;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.pricing-card {
  border-radius: var(--r-xl);
  padding: 48px;
  border: 1.5px solid var(--c-border-dk);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

.pricing-card.dark {
  background: var(--c-dark2);
  border-color: transparent;
  position: relative;
}
.pricing-card.dark::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r-xl);
  padding: 1.5px;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.pricing-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--c-purple);
  margin-bottom: 12px;
}
.pricing-card.dark .pricing-label { color: var(--c-purple-lt); }

.pricing-name {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--c-dark);
  margin-bottom: 20px;
}
.pricing-card.dark .pricing-name { color: var(--c-white); }

.pricing-amount {
  font-family: var(--font-display);
  font-size: 60px;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
  color: var(--c-dark);
}
.pricing-card.dark .pricing-amount {
  background: linear-gradient(135deg, var(--c-purple-lt), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.pricing-amount-currency {
  font-size: 24px;
  font-weight: 500;
  vertical-align: super;
  letter-spacing: 0;
}
.pricing-amount-per {
  font-size: 16px;
  font-weight: 400;
  color: var(--c-muted);
  -webkit-text-fill-color: var(--c-muted);
}
.pricing-card.dark .pricing-amount-per { color: rgba(255,255,255,0.3); -webkit-text-fill-color: rgba(255,255,255,0.3); }

.pricing-divider { height: 1px; background: var(--c-border); margin: 28px 0; }
.pricing-card.dark .pricing-divider { background: rgba(255,255,255,0.07); }

.pricing-features { display: flex; flex-direction: column; gap: 14px; }
.pricing-feature {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14px;
  color: var(--c-body);
}
.pricing-card.dark .pricing-feature { color: rgba(255,255,255,0.65); }
.feature-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--c-purple-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 10px;
  color: var(--c-purple);
  margin-top: 1px;
}
.pricing-card.dark .feature-check {
  background: rgba(124,92,252,0.2);
}

.referral-steps { display: flex; flex-direction: column; gap: 20px; }
.referral-step { display: flex; align-items: flex-start; gap: 16px; }
.referral-step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  color: var(--c-white);
  flex-shrink: 0;
}
.referral-step-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: 3px;
}
.referral-step-sub { font-size: 13px; color: rgba(255,255,255,0.4); }

/* ============================================================
   FORM
   ============================================================ */
.form-section { background: var(--c-purple-bg); }

.form-card {
  background: var(--c-white);
  border-radius: var(--r-xl);
  padding: 56px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--c-border);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { display: flex; flex-direction: column; gap: 6px; }
.form-field.span-2 { grid-column: 1 / -1; }

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--c-dark);
  letter-spacing: 0.2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--c-border-dk);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--c-dark);
  background: var(--c-white);
  transition: var(--transition);
  outline: none;
  appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--c-muted); }

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--c-purple);
  box-shadow: var(--shadow-glow);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-select { cursor: pointer; }

.form-submit {
  width: 100%;
  padding: 18px;
  border-radius: var(--r-full);
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-white);
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  background-size: 200% 100%;
  background-position: 0% 50%;
  transition: var(--transition);
}
.form-submit:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(124,92,252,0.35);
}
.form-submit:disabled { opacity: 0.65; cursor: wait; transform: none; }

.form-success {
  display: none;
  text-align: center;
  padding: 48px 32px;
}
.form-success-icon { font-size: 64px; margin-bottom: 20px; }
.form-success h3 { margin-bottom: 10px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--c-dark);
  padding: 64px 0 36px;
}
.footer-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  margin-bottom: 28px;
  gap: 40px;
}
.footer-logo { flex-shrink: 0; }
.footer-logo img {
  width: 300px;
  max-width: 300px;
  height: auto;
  object-fit: contain;
  display: block;
  background: transparent;
}
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; }
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.35);
  transition: var(--transition);
}
.footer-links a:hover { color: var(--c-purple-lt); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.footer-copy { font-size: 13px; color: rgba(255,255,255,0.2); }
.footer-tagline { font-size: 13px; color: rgba(255,255,255,0.2); }

/* ============================================================
   STUDY PAGE — LAYOUT
   ============================================================ */
.study-hero {
  padding: 110px 0 56px;
  background: var(--c-dark);
  position: relative;
  overflow: hidden;
}
.study-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 60% at 70% 50%, rgba(124,92,252,0.15) 0%, transparent 70%);
  pointer-events: none;
}
.study-hero-inner { position: relative; z-index: 2; }

.tools-nav {
  background: var(--c-white);
  border-bottom: 1px solid var(--c-border);
  position: sticky;
  top: 68px;
  z-index: 100;
}
.tools-nav-inner {
  display: flex;
  gap: 0;
  overflow-x: auto;
}
.tool-nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 28px;
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-muted);
  border-bottom: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}
.tool-nav-btn:hover { color: var(--c-purple); }
.tool-nav-btn.active { color: var(--c-purple); border-bottom-color: var(--c-purple); }
.tool-nav-icon { font-size: 18px; }

.tool-panel { display: none; padding: 64px 0; }
.tool-panel.active { display: block; }

/* ============================================================
   SCORE ESTIMATOR TOOL
   ============================================================ */
.estimator-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 40px;
  align-items: start;
}
.estimator-inputs { display: flex; flex-direction: column; gap: 20px; }
.est-row {
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 24px;
  transition: var(--transition);
}
.est-row:hover { border-color: var(--c-purple); }
.est-row:focus-within { border-color: var(--c-purple); box-shadow: var(--shadow-glow); }
.est-row-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}
.est-row-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-dark);
}
.est-row-icon {
  width: 32px;
  height: 32px;
  border-radius: var(--r-sm);
  background: var(--c-purple-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}
.est-row-max { font-size: 12px; color: var(--c-muted); }
.est-input-wrap { display: flex; align-items: center; gap: 12px; }
.est-num-input {
  width: 80px;
  padding: 10px 14px;
  border: 1.5px solid var(--c-border-dk);
  border-radius: var(--r-sm);
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 700;
  text-align: center;
  color: var(--c-dark);
  background: var(--c-off);
  outline: none;
  transition: var(--transition);
}
.est-num-input:focus { border-color: var(--c-purple); background: var(--c-white); box-shadow: var(--shadow-glow); }
.est-bar-wrap { flex: 1; }
.est-bar-track {
  height: 8px;
  background: var(--c-purple-bg);
  border-radius: var(--r-full);
  overflow: hidden;
}
.est-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--c-purple), var(--c-blue));
  border-radius: var(--r-full);
  transition: width 0.4s ease;
}
.est-section-score {
  font-size: 22px;
  font-weight: 800;
  color: var(--c-purple);
  min-width: 28px;
  text-align: right;
}

.est-result-card {
  background: var(--c-dark);
  border-radius: var(--r-xl);
  padding: 40px;
  position: sticky;
  top: 140px;
  text-align: center;
}
.est-result-label { font-size: 11px; color: rgba(255,255,255,0.3); text-transform: uppercase; letter-spacing: 2.5px; margin-bottom: 12px; }
.est-composite {
  font-family: var(--font-display);
  font-size: 100px;
  font-weight: 800;
  letter-spacing: -4px;
  line-height: 1;
  background: linear-gradient(135deg, var(--c-purple-lt), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.est-out-of { font-size: 20px; color: rgba(255,255,255,0.2); margin-top: 4px; margin-bottom: 24px; }
.est-tier {
  display: inline-block;
  padding: 8px 20px;
  border-radius: var(--r-full);
  font-size: 13px;
  font-weight: 700;
  background: rgba(124,92,252,0.15);
  color: var(--c-purple-lt);
  border: 1px solid rgba(124,92,252,0.25);
  margin-bottom: 28px;
}
.est-breakdown-list { display: flex; flex-direction: column; gap: 10px; text-align: left; }
.est-breakdown-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.est-bd-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  flex-shrink: 0;
}
.est-bd-label { font-size: 13px; color: rgba(255,255,255,0.45); flex: 1; }
.est-bd-val { font-size: 16px; font-weight: 800; color: var(--c-white); }
.est-cta-hint { margin-top: 24px; font-size: 13px; color: rgba(255,255,255,0.25); line-height: 1.5; }

/* ============================================================
   SECTION TRACKER TOOL
   ============================================================ */
.tracker-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}
.tracker-sliders { display: flex; flex-direction: column; gap: 24px; }
.tracker-item {
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 24px;
}
.tracker-item-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.tracker-item-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--c-dark);
}
.tracker-score-badge {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 800;
  color: var(--c-purple);
}
.tracker-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 7px;
  border-radius: var(--r-full);
  background: var(--c-purple-bg);
  outline: none;
  cursor: pointer;
  margin-bottom: 10px;
}
.tracker-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(124,92,252,0.4);
  transition: var(--transition);
}
.tracker-slider::-webkit-slider-thumb:hover { transform: scale(1.15); }
.tracker-item-desc { font-size: 13px; color: var(--c-muted); }

.tracker-result-panel {
  background: var(--c-dark);
  border-radius: var(--r-xl);
  padding: 40px;
  position: sticky;
  top: 140px;
}
.tracker-result-title { font-size: 11px; color: rgba(255,255,255,0.3); text-transform: uppercase; letter-spacing: 2px; margin-bottom: 20px; }
.tracker-radar { position: relative; width: 200px; height: 200px; margin: 0 auto 28px; }
.radar-bg { stroke: rgba(255,255,255,0.05); fill: none; }
.radar-fill { fill: rgba(124,92,252,0.25); stroke: var(--c-purple-lt); stroke-width: 1.5; transition: all 0.6s ease; }
.radar-labels text { fill: rgba(255,255,255,0.45); font-size: 10px; font-family: var(--font-body); }
.tracker-plan { display: flex; flex-direction: column; gap: 14px; }
.tracker-plan-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px;
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}
.tracker-plan-priority {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.priority-1 { background: var(--c-red); color: white; }
.priority-2 { background: #FFB347; color: var(--c-dark); }
.priority-3 { background: var(--c-green); color: var(--c-dark); }
.priority-4 { background: rgba(255,255,255,0.1); color: rgba(255,255,255,0.4); }
.tracker-plan-subject { font-size: 14px; font-weight: 600; color: var(--c-white); margin-bottom: 2px; }
.tracker-plan-desc { font-size: 12px; color: rgba(255,255,255,0.35); line-height: 1.5; }

/* ============================================================
   FLASHCARD TOOL
   ============================================================ */
.flashcard-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 40px;
  align-items: start;
}
.flashcard-main {}
.flashcard-progress {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.flashcard-progress-text { font-size: 14px; color: var(--c-muted); font-weight: 500; }
.flashcard-progress-bar-wrap {
  flex: 1;
  margin: 0 16px;
  height: 6px;
  background: var(--c-purple-bg);
  border-radius: var(--r-full);
  overflow: hidden;
}
.flashcard-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--c-purple), var(--c-blue));
  border-radius: var(--r-full);
  transition: width 0.4s ease;
}
.flashcard-progress-count { font-size: 14px; font-weight: 700; color: var(--c-purple); }

.flashcard-scene {
  perspective: 1400px;
  margin-bottom: 24px;
}
.flashcard {
  width: 100%;
  height: 260px;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}
.flashcard.flipped { transform: rotateY(180deg); }
.card-face {
  position: absolute;
  inset: 0;
  border-radius: var(--r-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 36px 40px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}
.card-front {
  background: linear-gradient(140deg, var(--c-dark2), var(--c-dark));
  border: 1px solid rgba(124,92,252,0.2);
}
.card-back {
  background: var(--c-white);
  border: 1.5px solid var(--c-purple);
  transform: rotateY(180deg);
  box-shadow: var(--shadow-lg);
}
.card-subject-tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 18px;
  opacity: 0.5;
}
.card-front .card-subject-tag { color: var(--c-purple-lt); }
.card-back .card-subject-tag { color: var(--c-purple); }
.card-question {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
  color: var(--c-white);
}
.card-back .card-question {
  font-size: 16px;
  color: var(--c-body);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.65;
}
.card-hint { font-size: 12px; color: rgba(255,255,255,0.3); margin-top: 20px; }

.flashcard-controls {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.flashcard-result-btns {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
}
.btn-knew-it {
  flex: 1;
  background: rgba(0,196,140,0.1);
  color: var(--c-green);
  border: 1.5px solid rgba(0,196,140,0.25);
  border-radius: var(--r-full);
  padding: 12px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}
.btn-knew-it:hover { background: rgba(0,196,140,0.18); }
.btn-missed-it {
  flex: 1;
  background: rgba(255,94,126,0.1);
  color: var(--c-red);
  border: 1.5px solid rgba(255,94,126,0.25);
  border-radius: var(--r-full);
  padding: 12px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}
.btn-missed-it:hover { background: rgba(255,94,126,0.18); }

.flashcard-sidebar { position: sticky; top: 140px; }
.fc-category-list {
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 24px;
  margin-bottom: 16px;
}
.fc-category-list h4 { font-size: 13px; font-weight: 700; color: var(--c-dark); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.5px; }
.fc-category-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--r-sm);
  border: none;
  background: transparent;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--c-body);
  transition: var(--transition);
  text-align: left;
  margin-bottom: 4px;
}
.fc-category-btn:hover { background: var(--c-purple-bg); color: var(--c-purple); }
.fc-category-btn.active { background: var(--c-purple-bg); color: var(--c-purple); font-weight: 700; }
.fc-category-count {
  font-size: 12px;
  font-weight: 700;
  background: var(--c-purple-bg);
  color: var(--c-purple);
  padding: 2px 8px;
  border-radius: var(--r-full);
}
.fc-stats-card {
  background: var(--c-purple-bg);
  border: 1px solid var(--c-border-dk);
  border-radius: var(--r-lg);
  padding: 20px;
}
.fc-stats-card h4 { font-size: 12px; font-weight: 700; color: var(--c-purple); margin-bottom: 14px; text-transform: uppercase; letter-spacing: 0.5px; }
.fc-stat-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; font-size: 13px; }
.fc-stat-row:last-child { margin-bottom: 0; }
.fc-stat-label { color: var(--c-muted); }
.fc-stat-val { font-weight: 700; color: var(--c-dark); }

/* ============================================================
   QUIZ TOOL
   ============================================================ */
.quiz-layout { max-width: 760px; margin: 0 auto; }
.quiz-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
}
.quiz-progress-text { font-size: 13px; color: var(--c-muted); font-weight: 600; }
.quiz-score-live {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 14px;
  font-weight: 700;
}
.quiz-correct { color: var(--c-green); }
.quiz-wrong { color: var(--c-red); }

.quiz-question-card {
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-xl);
  padding: 40px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
}
.quiz-q-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.quiz-q-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-purple);
  color: white;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.quiz-q-section { font-size: 12px; font-weight: 700; color: var(--c-muted); text-transform: uppercase; letter-spacing: 1px; }
.quiz-q-text {
  font-size: 17px;
  line-height: 1.65;
  color: var(--c-dark);
  font-weight: 500;
  margin-bottom: 28px;
}
.quiz-q-passage {
  background: var(--c-off);
  border-left: 3px solid var(--c-purple);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 16px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-body);
  margin-bottom: 24px;
  font-style: italic;
}
.quiz-options { display: flex; flex-direction: column; gap: 10px; }
.quiz-option {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 20px;
  border-radius: var(--r-md);
  border: 1.5px solid var(--c-border-dk);
  cursor: pointer;
  transition: var(--transition);
  background: var(--c-white);
}
.quiz-option:hover { border-color: var(--c-purple); background: var(--c-purple-bg); }
.quiz-option.selected { border-color: var(--c-purple); background: var(--c-purple-bg); }
.quiz-option.correct { border-color: var(--c-green); background: rgba(0,196,140,0.06); }
.quiz-option.wrong { border-color: var(--c-red); background: rgba(255,94,126,0.06); }
.quiz-option-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--c-purple-bg);
  color: var(--c-purple);
  font-size: 13px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
}
.quiz-option.selected .quiz-option-letter { background: var(--c-purple); color: white; }
.quiz-option.correct .quiz-option-letter { background: var(--c-green); color: white; }
.quiz-option.wrong .quiz-option-letter { background: var(--c-red); color: white; }
.quiz-option-text { font-size: 15px; color: var(--c-body); line-height: 1.5; }

.quiz-explanation {
  display: none;
  background: var(--c-purple-bg);
  border: 1px solid var(--c-border-dk);
  border-radius: var(--r-md);
  padding: 18px 20px;
  margin-top: 16px;
}
.quiz-explanation.show { display: block; }
.quiz-explanation-title { font-size: 12px; font-weight: 800; color: var(--c-purple); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 6px; }
.quiz-explanation-text { font-size: 14px; color: var(--c-body); line-height: 1.6; }

.quiz-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.quiz-results {
  display: none;
  text-align: center;
  padding: 60px 40px;
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-xl);
  box-shadow: var(--shadow-md);
}
.quiz-results.show { display: block; }
.quiz-results-score {
  font-family: var(--font-display);
  font-size: 96px;
  font-weight: 800;
  letter-spacing: -4px;
  background: linear-gradient(135deg, var(--c-purple), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin: 24px 0 8px;
}
.quiz-results-sub { font-size: 18px; color: var(--c-muted); margin-bottom: 32px; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }

/* ============================================================
   UTILS
   ============================================================ */
.text-center { text-align: center; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mt-40 { margin-top: 40px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.mb-40 { margin-bottom: 40px; }
.hidden { display: none !important; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-card { display: none; }
  .estimator-layout { grid-template-columns: 1fr; }
  .tracker-layout { grid-template-columns: 1fr; }
  .flashcard-layout { grid-template-columns: 1fr; }
  .flashcard-sidebar { position: static; }
}
@media (max-width: 768px) {
  .container, .container-sm { padding: 0 20px; }
  .navbar-links { display: none; }
  .hero { padding: 100px 0 60px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--c-border); }
  .stat-item:nth-child(2n) { }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .testi-grid { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .form-field.span-2 { grid-column: 1; }
  .form-card { padding: 32px 24px; }
  .footer-top { flex-direction: column; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .quiz-layout { padding: 0; }
  .quiz-question-card { padding: 24px; }
}

/* ============================================================
   PROOF BADGES (hero)
   ============================================================ */
.hero-proof-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 40px;
}
.proof-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  border-radius: var(--r-full);
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.proof-badge:hover {
  background: rgba(124,92,252,0.2);
  border-color: rgba(124,92,252,0.4);
  color: var(--c-white);
}
.proof-badge-icon { font-size: 15px; }

/* ============================================================
   STUDY TOOLS CARDS (index page)
   ============================================================ */
.study-tools-section { background: var(--c-purple-bg); }
.tools-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.tool-feature-card {
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: 32px 28px;
  border: 1.5px solid var(--c-border-dk);
  transition: var(--transition);
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
}
.tool-feature-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-purple), var(--c-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.tool-feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--c-purple);
}
.tool-feature-card:hover::after { transform: scaleX(1); }
.tool-feature-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--c-purple-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
}
.tool-feature-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--c-dark);
}
.tool-feature-desc {
  font-size: 14px;
  color: var(--c-muted);
  line-height: 1.6;
  flex: 1;
}
.tool-feature-cta {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-purple);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ============================================================
   POMODORO TIMER (inline on study page)
   ============================================================ */
.pomodoro-card {
  background: var(--c-dark2);
  border-radius: var(--r-xl);
  padding: 48px;
  text-align: center;
  max-width: 480px;
  margin: 0 auto;
  border: 1px solid rgba(124,92,252,0.2);
}
.pomodoro-display {
  font-family: var(--font-display);
  font-size: 88px;
  font-weight: 800;
  letter-spacing: -4px;
  background: linear-gradient(135deg, var(--c-purple-lt), var(--c-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin: 24px 0;
}
.pomodoro-mode {
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 8px;
}
.pomodoro-session { font-size: 14px; color: rgba(255,255,255,0.3); margin-bottom: 32px; }
.pomodoro-controls { display: flex; gap: 12px; justify-content: center; margin-bottom: 28px; }
.pomodoro-mode-btns {
  display: flex;
  gap: 8px;
  justify-content: center;
  background: rgba(255,255,255,0.05);
  padding: 6px;
  border-radius: var(--r-full);
  width: fit-content;
  margin: 0 auto;
}
.pomo-mode-btn {
  padding: 8px 20px;
  border-radius: var(--r-full);
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.pomo-mode-btn.active {
  background: var(--c-purple);
  color: white;
}
.pomodoro-progress-ring { position: relative; margin: 0 auto 8px; width: 200px; height: 200px; }
.pomodoro-ring-svg { transform: rotate(-90deg); }
.pomodoro-ring-bg { fill: none; stroke: rgba(255,255,255,0.06); stroke-width: 8; }
.pomodoro-ring-fill { fill: none; stroke: url(#pomRingGrad); stroke-width: 8; stroke-linecap: round; transition: stroke-dashoffset 1s linear; }

/* Mobile responsive additions */
@media (max-width: 768px) {
  .navbar-logo img { height: 38px; max-height: 38px; width: auto; max-width: 180px; }
  .footer-logo img { width: 220px; max-width: 220px; }
  .tools-cards-grid { grid-template-columns: 1fr; }
  .hero-proof-badges { gap: 8px; }
  .proof-badge { font-size: 12px; padding: 7px 13px; }
}

/* ============================================================
   FLASHCARD — UPGRADED UI (Task 4)
   ============================================================ */

/* Front badges */
.fc-front-badges {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  justify-content: center;
}
.fc-badge-subject {
  padding: 4px 12px;
  border-radius: var(--r-full);
  background: rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.9);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
}
.fc-badge-topic {
  padding: 4px 12px;
  border-radius: var(--r-full);
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.7);
  font-size: 11px;
  font-weight: 600;
}
.fc-diff-badge {
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: 11px;
  font-weight: 700;
  border: 1px solid transparent;
}
.fc-diff-easy   { background: rgba(0,196,140,0.2);  color: #00C48C; border-color: rgba(0,196,140,0.35); }
.fc-diff-medium { background: rgba(255,179,71,0.2); color: #FFB347; border-color: rgba(255,179,71,0.35); }
.fc-diff-hard   { background: rgba(255,94,126,0.2); color: #FF5E7E; border-color: rgba(255,94,126,0.35); }

/* Taller card for more content */
.flashcard { height: 300px; }

/* Back face layout */
.fc-back-inner {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow-y: auto;
  max-height: 100%;
  padding: 2px;
}
.fc-back-answer {
  font-size: 15px;
  color: var(--c-body);
  line-height: 1.65;
  font-weight: 400;
  white-space: pre-line;
}
.fc-back-example {
  background: var(--c-purple-bg);
  border-left: 3px solid var(--c-purple);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  padding: 10px 14px;
}
.fc-back-example-label {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--c-purple);
  margin-bottom: 4px;
}
.fc-back-example-text {
  font-size: 13px;
  color: var(--c-body);
  line-height: 1.6;
  font-style: italic;
}
.fc-back-why {
  font-size: 12px;
  color: var(--c-muted);
  line-height: 1.5;
  padding-top: 8px;
  border-top: 1px solid var(--c-border);
}
.fc-back-why-label {
  font-weight: 700;
  color: var(--c-purple);
  display: block;
  margin-bottom: 2px;
}

/* Star button */
.btn-star {
  flex: 0 0 auto;
  padding: 12px 16px;
  background: rgba(255,179,71,0.1);
  color: #FFB347;
  border: 1.5px solid rgba(255,179,71,0.3);
  border-radius: var(--r-full);
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  transition: var(--transition);
}
.btn-star:hover, .btn-star.starred {
  background: rgba(255,179,71,0.2);
  border-color: #FFB347;
}

/* Flip hint */
.card-hint {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  font-size: 12px;
  color: rgba(255,255,255,0.35);
  margin-top: 20px;
}

/* Disclaimer */
.fc-disclaimer {
  font-size: 12px;
  color: var(--c-muted);
  text-align: center;
  margin-top: 20px;
  line-height: 1.5;
  font-style: italic;
  padding: 0 20px;
}

/* Filter cards (sidebar) */
.fc-filter-card {
  background: var(--c-white);
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 18px 20px;
  margin-bottom: 12px;
}
.fc-filter-label {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--c-muted);
  margin-bottom: 12px;
}
.fc-filter-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.fc-subject-btn, .fc-diff-btn {
  padding: 7px 14px;
  border-radius: var(--r-full);
  border: 1.5px solid var(--c-border-dk);
  background: transparent;
  color: var(--c-body);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.fc-subject-btn:hover, .fc-diff-btn:hover {
  border-color: var(--c-purple);
  color: var(--c-purple);
  background: var(--c-purple-bg);
}
.fc-subject-btn.active, .fc-diff-btn.active {
  background: var(--c-purple);
  color: white;
  border-color: var(--c-purple);
}

/* Flashcard result btn row — 3 buttons */
.flashcard-result-btns {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.btn-knew-it, .btn-missed-it {
  flex: 1;
  min-width: 100px;
}

/* Stats card tweaks */
.fc-stats-card { margin-bottom: 12px; }
.fc-stats-card h4 {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--c-purple);
  margin-bottom: 14px;
}

/* Mobile adjustments */
@media (max-width: 768px) {
  .flashcard { height: 280px; }
  .fc-back-answer { font-size: 14px; }
  .fc-filter-btns { gap: 4px; }
  .fc-subject-btn, .fc-diff-btn { font-size: 12px; padding: 6px 10px; }
}

/* ---- QUIZ sentence with underline support ---- */
.quiz-sentence {
  display: block;
  margin-top: 8px;
  font-style: italic;
  color: var(--c-body);
  line-height: 1.6;
}
.quiz-q-text u {
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- Flashcard answer — support newlines in content ---- */
.fc-back-answer {
  white-space: pre-line;
}